A new report from the paramedics called to Michael Jackson‘s home on the day of his death indicates the singer was dead at least an hour before help arrived.

This implicates the embattled Dr. Conrad Murray, Jackson’s personal physician, as he insisted the pop king had a pulse when paramedics arrived–and that a hospital visit could’ve possibly saved his life.

First discovered by UK newspaper News of the World, the form in question is called an F-902M, one that medics are required to fill out after attending to a “fatality.”

The form in Jackson’s case has several important details: Jackson had no pulse, attempts failed to start his heart (aka flatline), and a condition called Lividity, where all the blood flows to the bottom of the body before heart failure.

A close friend of Jackson’, Dr. Steven Hoefflin, spoke to the paper with the permission of Michael’s mother to confirm the forms findings.

“He had no pulse and was not breathing. They gave him an electro-cardiogram but he was flatlined. They say he even had lividity, which meant the blood had sunk to the back, indicating his heart had stopped a couple of hours earlier,” Hoefflin said.

This document could unhinge Conrad’s defense attempts, spearheaded by lawyer Ed Chernoff, which argue that medics, UCLA hosptial staffers and even Jackson himself were responsible for the singer’s demise.

“This F-902M form is a bombshell key to the investigation,” Hoefflin said.